Battery alternatives for the DX7?

[fiveoboy01]

I'm dis-satisfied with the battery life on my DX7, frankly I think it stinks.

I would toss a lipo in it but I'm hesitant to do so due to a few reports of transmitter damage and Spektrum does not recommend it.

I've seen a few people solder up their own pack in series using those Panasonic rechargeable ni-mh cells. Anyone doing this?

Any other alternatives?

[LITHIUMSTATIC]

The only thing I know of is a Lipo. That's what I use in my DX7 and it works great and hardly ever need to charge.... pretty cheap at $30 http://home.comcast.net/~truerc/ready_pack/ready_packs.htm

I'm sure their is something else. I just don't know where you would get them.

[Rodney]

There are Ions available as well. 3s2p 2000mah

[capebob]

Here you go. http://www.hangtimes.com/txpacks.html

Bob

[Pinecone]

I have a 2700 mAH NiMH that I picked up from Discount Hobby Warehouse in San Diego area.

It doesn't self discharge quickly, it has great life. Only downside to the pack I bought is that it didn't come with a JR connector, but those are available.

You can also get 2600mAH packs from Cheap Battery Packs with the proper connector.

[mrhook]

JR also sells a 2500 Mah NiMH battery that plugs right in. ive got one in mine and it works great.

[ChasHeliCop]

You can also do the DE mod to your voltage regulator and double the life of your battery. Downside..... voids your factory warranty.

[Ciprian]

A buddy of mine uses a Radio Shack battery holder and 8 rayovac hybrid batteries. Very low self discharge, 2000 mAH. He has been using this setup for a while now, no problem at all. If you want to read more about it, search the user Everydayflyer on RCGroups. I am using the same setup on a Futaba 9CHPS.

[manike]

I just ordered some li-po batteries for my DX7 but I'm concerned about the risk of ruining them if I accidently forget to turn the DX7 off (I already did this once).

Is there an 'auto off' after a time period on the DX7? If not, why not?

Thanks.

[Rodney]

You will just have to keep an eye on the voltmeter. You can put a led in it to let you know it is on as well. But the power will last a long time compared to the stock battery or even the 2500mah nimh battery.

[manike]

How do I put an LED in it? I might put an ultra bright blue LED in it... would be hard to miss that. :) :thumbup:

[ChasHeliCop]

Check out this thread for installing the LED..... step by step instructions.


http://www.helifreak.com/showthread.php?t=49174

Good luck !

[manike]

Thanks! I'm going to do that. :thumbup:

[najones]

Something else that you may want to do, not that I suggest doing it, is changing the low voltage alarm in the service menu. I was just reading about this and you can set the voltage that the thing beeps at, it should probably be higher with a lipo.